Screen gasket



W. H. B'ETTS scngEN GASKET. APPLICATION FILED MAR. 19, 1921.

l ,figgm; Patented July 18,1922;

siren SNTE@ WILLIAM H. BETTS, OF PORTLAND, OREGON.

SCREEN GASKET.

rasante.

Specification of Letters Patent.

Patented July 18, 1922.

,Application filed March 19, 1921. Serial No. 453,569.

To all whom it may concern:

Be it hereby known that l, l/Vinnrnir H. Bnrrs, a citizen of the United States, and a resident of Portland, in the county of Multnomah and State of Uregon, have invented a new and useful Screen Gasket, of which the following is a specification.

This invention relates more particularly to gaskets such as are used between the carbureter and intake manifold of an internal combustion engine.

The object of my invention is to provide an exceedingly simple, inexpensive and eliicient means for breaking' up heavier' oils such as kerosene, etc.

l attain these results in the manner set forth in the following specification and illustrated in the accompanying drawing in which Figure l is an elevation of my device showing its relation to a carbureter and intake manifold. Figure 3 is a bottom view of the device. Figure 2 is a front elevation of the device. Figure 4 is a section along the line 1 -4t in Fig. 3. Figure 5 is a top view showing one of the screens and art of the gasket removed. Figure G is an enlarged detail showing how the various elements are assembled.

Similar numbers of reference refer to the same or similar'parts throughout the several views.

Referring in detail to the drawing, l have constructed my device of twolayers of backing material 7 and 8 cut into the form of a manifold flange. Before placing the parts and 8 together a piece of screen wire 9 is placed over the opening 10 in the gasket. Across this is placed a bridge 10A, preferably of sheet metal, whose ends are curled downwardly and under the ends of the screen 9 and secured thereto. At the center of this bridge 10A is mounted a fan shaped disk 1l on the screw l2 which is secured to the bridge l()A by means of the nuts 13 above and below the bridge.

A bulging` screen ll is now placed over the screen 9 and the portion 7 of the gasket put in place over the portion 8 to which it is now secured by means of a suitable cement, or in any other convenient manner.

rlhe operation of my device is as follows: .lt is installed by placing same as shown in F ig. l between the carbureter 15 and the intake manifold 16 with the bulging screen lll toward the intake manifold. lt 1.vill be seen that the majority of the fuel reaching the screen 9 strikes it near its center at which is located the fan l1. By bulging' the screen 141-, a spreading and sprayingaction is secured which is so essential to the proper combustion of kerosene fuel.

I have found by experience that a thirty mesh screen best meets the requirements of this device as a liner screen lwill tend to clog with fuel and retard the passage from the carburetor, whereas a coarser screen will not break up the articles sufficiently for the purpose intended.

l am enabled by the use of this device to run a car of the Ford type with a standard carlnrreter entirely upon kerosene, using gasoline as a primer only at low temperatures.

l am aware that numerous single screen gaskets have been tried with varying degrees of success, l therefore do not claim the' use of the screen broadly but only in the manner set forth in the following` claim.

1What l claim as new is:-

A gasket adapted to be placed between the carbureter and the intake manifold flange of an internal combustion engine, consisting of two thicknesses of backing material of the same general shape and perforations as are the yiianges and having secured between same a flat screen facing the carbureter and a bulging screen facing the manifold, and having mounted across the center of said screens a bridge member, and a rotatable fan mounted on said bridge between said screens.

lVlLLlAlv/l H. BETTS. 

